The Death of Lord Edgware - Agatha Christie

Poirot was given the strangest task he could have imagined, when Jane Wilkinson proposed to him: "I want your help, Mr. Poirot... I want to get rid of my husband any way!"

Soon the husband, Lord Edgware, was murdered. What will Poirot do to solve the mystery of the Lord's murder? Jane Wilkinson wanted to get rid of him anyway, and now he was killed. So who killed him?